Starlight Instruments 3.0" Feather Touch R/P Focuser
The Starlight Instruments 3.0″ Feather Touch R/P Focuser has a lifting capacity of 13 to 15 pounds. It comes in drawtube travel of 1.5″, 2.5″ and 3.5″.
Feather Touch Focusers by Starlight Instruments are know for their quality and craftsmanship. They are offered as a standard feature by some of the most recognized telescope manufactures including: Astro-Physics, TEC, Lunt, Tele Vue, CFF Telescopes, Celestron, Takahashi, Borg, APM, Obsession, William Optics, Teeters Telescopes, Orion Optics and New Moon Telescopes.
Starlight Instruments designs, machines, anodizes and assembles the components in-house allowing for superior quality control. A Feather Touch Focuser is an absolute must for astrophotography, in addition to making visual use a joy.
Standard Features Include:
- Ultra-smooth coarse/fine focus knobs (10:1 Ratio)
- Rotatable
- Brake Adjustment Screw
- Glare resistant black internal baffling
- Durable hardened stainless steel, steel, and aluminum construction
- Anodized aluminum fine focus knob
- Standard Drawtube with nylon
- Tipped stainless steel set screws (gentle on eyepieces)
- Ultra-Low backlash system for accurate control
- Sleek aesthetic design
- Designed, machined, and assembled in the U.S.A.
Technical Specifications
1.5″ Travel Drawtube Option
| Draw Tube Thread |
M75X1 Female Thread |
| Draw Tube Travel |
1.5″/38.10MM |
| Lifting Capacity |
13-15 pounds |
| Thread on Entry (OTA | FRONT) Side of Draw Tube |
M109X1 Male Thread |
| Reduction Ratio |
10:01 |
| Finderscope hole thread dimension |
8-32 |
| Draw Tube Drive Mechanism |
Rack/Pinion |
| Weight of focuser |
3.4 pounds of which includes the standard adapter and 2″ compression ring end cap |
| Racked In from Mounting Face |
3.672″/93.27MM |
| Racked Out from Mounting Face |
5.368″/136.35MM |
2.5″ Travel Drawtube Option
| Draw Tube Thread |
M75X1 Female Thread |
| Draw Tube Travel |
2.5″/63.5MM |
| Lifting Capacity |
13-15 pounds |
| Thread on Entry (OTA | FRONT) Side of Draw Tube |
M109X1 Male Thread |
| Reduction Ratio |
10:01 |
| Finderscope hole thread dimension |
8-32 |
| Draw Tube Drive Mechanism |
Rack/Pinion |
| Weight of focuser |
3.52 pounds of which includes the standard adapter and 2″ compression ring end cap |
| Racked In from Mounting Face |
3.672″/93.27MM |
| Racked Out from Mounting Face |
6.368″/161.75″MM |
3.5″ Travel Drawtube Option
| Draw Tube Thread |
M75X1 Female Thread |
| Draw Tube Travel |
3.5″/88.90MM |
| Lifting Capacity |
13-15 pounds |
| Thread on Entry (OTA | FRONT) Side of Draw Tube |
M109X1 Male Thread |
| Reduction Ratio |
10:01 |
| Finderscope hole thread dimension |
8-32 |
| Draw Tube Drive Mechanism |
Rack/Pinion |
| Weight of focuser |
3.63 pounds of which includes the standard adapter and 2″ compression ring end cap |
| Racked In from Mounting Face |
3.672″/93.27MM |
| Racked Out from Mounting Face |
7.368″/187.15MM |
In the Box
Focuser
Manual & Warranty
Starlight Instruments Lifetime Warranty
Starlight Instruments Feather Touch Focusers Brochure
